<template>
  <div class="list_wrap">
    <!-- 面包屑导航 -->
    <el-breadcrumb separator="/">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item :to="{ path: '/home/categories' }">
        商品管理
      </el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <!-- @clear  清空搜索框触发该事件 -->
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getGoodsList()"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getGoodsList()"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="toAddPage()">添加商品</el-button>
        </el-col>
      </el-row>
      <!-- 表格 -->
      <el-table :data="goodsList" style="width: 100%" border stripe>
        <el-table-column type="index" label="#"> </el-table-column>
        <el-table-column prop="goods_name" label="商品名称"> </el-table-column>
        <el-table-column prop="goods_price" label="商品价格（元）" width="120">
        </el-table-column>
        <el-table-column prop="goods_weight" label="商品重量" width="80">
        </el-table-column>
        <el-table-column label="创建时间" width="180">
          <template slot-scope="scope">
            {{ scope.row.add_time | dateFormat }}
          </template>
        </el-table-column>
        <el-table-column label="操作" width="150">
          <template slot-scope="scope">
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
            ></el-button>
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="removeGoodById(scope.row.goods_id)"
            ></el-button>
          </template>
        </el-table-column>
      </el-table>
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[5, 10, 15, 30, 50]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>
  </div>
</template>

<script>
export default {
  name: 'List',
  data() {
    return {
      // 保存商品列表数据
      goodsList: [],
      // 查询参数
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 5,
      },
      total: 0,
    }
  },
  methods: {
    // 获取商品列表
    async getGoodsList() {
      const { data: res } = await this.$http.get('goods', {
        params: this.queryInfo,
      })
      // console.log(res)
      if (res.meta.status !== 200) return this.$msg.error('获取商品列表失败')
      this.goodsList = res.data.goods
      this.total = res.data.total
    },
    // 监听pagesize的改变
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getGoodsList()
    },
    // 监听页码值的改变
    handleCurrentChange(newNum) {
      this.queryInfo.pagenum = newNum
      this.getGoodsList()
    },
    // 通过id删除商品
    async removeGoodById(id) {
      const confirmResult = await this.$confirm(
        '此操作将永久删除该商品, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning',
        }
      ).catch((err) => err)
      if (confirmResult === 'cancel') return
      const { data: res } = await this.$http.delete(`goods/${id}`)
      // console.log(res)
      if (res.meta.status !== 200) return this.$msg.error('删除商品失败')
      this.$msg.success('删除商品成功')
      this.getGoodsList()
    },
    // 跳完添加商品页
    toAddPage(){
        this.$router.push('/goods/add')
    }
  },
  beforeMount() {
    this.getGoodsList()
  },
}
</script>

<style scoped>
.el-breadcrumb {
  margin-bottom: 15px;
}
.el-table {
  margin: 15px 0;
}
</style>